I'm wondering why fallthrough isn't allowed in a type switch statement in golang.
According to the specification: "The "fallthrough" statement is not permitted in a type switch.", which doesn't explain much about WHY it isn't allowed.
The code attached is to simulate a possible scenario were a fallthrough in a type switch statement might have been useful.
Notice! This code doesn't work, it will produce the error: "cannot fallthrough in type switch". I'm just wondering what possible reasons might have been for not allowing the fallthrough statement in a type switch.
//A type switch question
package main
import "fmt"
//Why isn't fallthrough in type switch allowed?
func main() {
//Empty interface
var x interface{}
x = //A int, float64, bool or string value
switch i := x.(type) {
case int:
fmt.Println(i + 1)
case float64:
fmt.Println(i + 2.0)
case bool:
fallthrough
case string:
fmt.Printf("%v", i)
default:
fmt.Println("Unknown type. Sorry!")
}
}